Truck bumper



FIG. 1 is a perspective view of a truck bumper, the broken lines depict portions of the truck bumper that form no part of the claim;

FIG. 2 is a front view of the truck bumper;

FIG. 3 is a rear view of the truck bumper;

FIG. 4 is a left side view of the truck bumper;

FIG. 5 is a right side view of the truck bumper;

FIG. 6 is a top view of the truck bumper; and,

FIG. 7 is a bottom view of the truck bumper. 

CLAIM The ornamental design for a truck bumper, as shown and described. 